Assignment 1.

What do you mean by central tendency?

2.

What are the measures of central tendency?

3.

The mean weight of three dogs is 38 pounds. One of the dogs weighs 46 pounds. The other two dogs, Eddie and Tommy, have the same weight. Find Tommy’s weight.

4.

On her first 5 math tests, Zany received scores 72, 86, 92, 63, and 77. What test score she must earn on her sixth test so that her average for all 6 tests will be 80?

5.

How mean gets affected by extreme values?

6.

Calculate AM for the data:

7.

x

f

0

05

1

10

2

05

3

10

4

05

10

02

Find median for

65 55

89

56

35

14

56

55

87

45

92

8.

How do I know which measure of central tendency to use?

9.

What will happen to the measures of central tendency if we add or multiply each data value by the same amount?

10. Explain GM and HM with examples. 11. Prove that AM X HM = (GM) 2 12. For any two numbers, AM = 10 and GM = 8. Find out the numbers. 13. For any two numbers, GM = 4√3 and HM = 6. 14. Find out AM and the numbers. 15. Prove that AM ≥ GM ≥ HM 16. Write down the criteria for good measures of central tendency.

Md. Mortuza Ahmmed